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MODULE TWO AIM To understand the causes and spread of infection and be able to apply the principles of infection prevention and control OBJECTIVES To understand the types of micro-organisms and how they grow To be able to identify the types of infections micro-organisms cause CAUSES OF INFECTION MICRO ORGANISMS THERE ARE BILLIONS OF THEM CANNOT BE SEEN BY HUMAN EYE CAN BE PATHOGENIC OR NON PATHOGENIC Terms Infection colonisation The presence of a harmful microorganism s in the body When microorganisms multiply in the tissues but cause no signs or symptoms of disease Localised infection Systemic infection Infection affecting a specific area of the body Infection affecting the whole body Activity Please complete question four in your workbook GROUPS OF MICRO-ORGANISMS VIRUSES BACTERIA FUNGI PROTOZOA SMALLEST CAN LIE DORMANT THEN BECOME ACTIVE QUICKLY DIE OUTSIDE OF HOST VARY IN SHAPE VIRUSES NEED A HOST MEASLES HEPATITIS MUMPS VIRAL DISEASES INFLUENZA CHICKEN POX HIV THE AIDS VIRUS THE CHICKENPOX VIRUS THE FLU VIRUS LARGER THAN VIRUSES CAN LIE DORMANT THEN BECOME ACTIVE VARY IN SHAPE BACTERIA CAN LIVE OUTSIDE HOST MILLIONS EXIST ONLY A FEW ARE PATHOGENIC GASTRO ENTERITIS SYPHILIS MENINGITIS BACTERIAL DISEASES GANGERENE TUBERCULOSIS PNEUMONIA BACTERIAL BLOB BACTERIAL MENINGITIS E-COLI BACTERIA BACTERIAL INFECTION BACTERIAL MENINGITIS A SIMPLE PLANT CAN CAUSE ILLNESS AND DEATH SOME ARE HARMFUL A PARASITE FUNGI CAN BE BENEFICIAL ATHLETES FOOT NAIL DISEASE ORAL CANDIDA FUNGAL DISEASES SKIN DISEASE VAGINAL CANDIDA RINGWORM FUNGI RINGWORM SKIN FUNGUS TOENAIL FUNGUS SMALL PRIMATIVE ANIMAL APPROX 30 ONLY ONE CELL HARMFUL PARASITES LARGER THAN BACTERIA PROTOZOA LARGER THAN VIRUSES MALARIA THREAD WORMS DYSENTRY PROTOZOA DISEASES CRYPTOSPRIDIUM TRICHOMONAS TOXOPLASMOSIS MOSQUITO MALARIA THREADWORMS PROVIDE TIME HOW TO GROW PATHOGENIC MICRO ORGANISMS PROVIDE WARMTH PROVIDE MOISTURE PROVIDE FOOD Test your knowledge Please complete the crossword QUESTIONS Activity Please complete question five and six in your workbook THANKYOU
